2005 Yamaha F90TR 90HP Outboards Factory Service Manual, Page 104Get this manual
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Exhaust cover
S6D85550
NOTE: Apply engine oil to the exhaust cover bolts before installationExhaust cover bolt: 1st: Nm (0.6 kgfm, 4.4 ftlb) 2nd: 12 Nm (1.2 kgfm, 8.9 ftlb)